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Identify at least THREE everyday examples of waves that travel through each of the following:
a. solids
b. liquids
c. gases
In what ways do different kinds of seismic waves differ from waves on water?
What other wavelengths of electromagnetic radiation are used in medicine?
In molecules of gaseous sodium chloride, the chloride ion has one more electron than proton, and the sodium ion has one more proton than electron. How much work would be required
A 72-kg base runner begins his slide into second base when he is moving at a speed of 3.9 m/s. How far does he slide
A 78kg astronaut is floating in space, he throws a 600 gram wrench at 20 m/s in the direction away from the space station so that he can begin floating towards space. How fast will he be traveling?
A projectile ,was launched vertically from the surface, of the Moon rises to an altitude of 330km. What would be the projectile's initial speed
The starter motor of a car engine draws an electric current of 42.0 A from the battery. The copper wire to the motor is 5.70 mm in diameter and 1.36 m long. How much electric charge passes through the starter motor
A cyclist turns her bicycle upside down to repair it. She then notices that the front wheel is executing slow, small amplitude, back-and-forth rotational motion with period 12s. Treating the wheel as a thin ring of radius 30 cm and mass 600 g, whose ..
A laser beam is directed at the Moon, 380,000 {\rm km} from Earth. The beam diverges at an angle\theta of 7.4×10-5 rad. What diameter spot will it make on the Moon
What is the energy range (in joules) of photons of wavelength 400nm to 760nm
a 60 kg student consumes 2500 cal each day and stays the same weight. one day he eats 3500 cal and wanting to keep from
A toy car starts with some initial velocity and rolls down a ramp inclined at an angle of 15°. It reaches the bottom 1.6 s later. What was its initial velocity
A telephoto lens with focal length of 123 mm has f-numbers ranging from f/2.8 to f/22. What is the diameter of the lens aperture at the second f-number
A hydraulic lift is used to jack a 970 kg car 12 cm off the floor. The diameter of the output piston is 18 cm, and the input force is 250 N. What is the area of the input piston
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